A contaminated Mass Airflow Sensor (MAF) is notorious for causing lack of power, poor running & poor fuel economy on a Mondeo TDCi, also Exhaust Gas Recirculation (EGR) system sooted/gunked up.
Clean the EGR and if the MAF hasn't been changed for yonks then it's well worth changing.
Edited by MikeTorque on 28/12/2011 at 21:54
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